Scalp serum
Why a scalp serum can make hair greasy, and how to stop it
Four reasons a scalp serum leaves roots looking greasy, from the formula to where the drops land, and the small changes that fix each...
Journal
Our blog
Hair care, routines, and what the words on a bottle actually mean.
Water-based
Water-based hair serum: what it is and how to spot one
What makes a hair serum water-based, how to spot one on the back of any bottle in ten seconds, and why it behaves so...
Rosemary
Rosemary extract and rosemary oil are not the same thing
One is steam-distilled, the other drawn out with a solvent. How each is made, what is in it, how to tell them apart on...
Rosemary
Rosemary serum or rosemary oil: what changes on the scalp
Oil suits a pre-wash ritual; a water-based serum suits a daily leave-on step. What is in each bottle, how each behaves on fine hair,...
Fine hair
How to cover a wide part, with styling, colour and placement
Move it, break up the line, lift the roots and soften the contrast. Six ways to make a wide part look narrower, most of...
Rosemary
Rosemary oil: before or after washing your hair?
Before, and here is why: oil needs shampoo to come out. How to apply it, how long to leave it, how to wash it...
Peptides
Peptide serum or rosemary: which one, or both
What peptides are, what sh- means on a bottle, how rosemary oil and extract differ, and how the two fit into one day without...
Water-based
Hair serum vs hair oil, tonic and essence: what each word means
Only one of those four words is a category the US regulator recognises, and it is not the one most people would guess. What...
Evidence
What “clinically tested” actually means on a beauty label
Some label claims have a real evidentiary bar behind them. Others have none at all, and the FDA has said one of them means...